A Northern Irish couple are preparing for the death of their only living daughter.

Four-year-old Lacey Pollock has been given just days to live, as she succumbs to the mystery illness that has claimed the lives of four of her siblings.

Lacey's mum Jamie and her dad Mark are now trying to make their daughter's final week "extra special".

Little Lacey is spending her final days in Royal Victoria Hospital's paediatric unit, though she is heavily sedated and on a ventilator she is still all smiles.

35-year-old Jamie is "devastated" and is now "praying for a miracle" for her young daughter.

The Pollock family have already lost four children to the unknown illness, nine-week-old Lexi, 11-month-old Jordan, six-year-old Ellie and 13-year-old Jamielee.

Lacey has spent half of her short life in hospital, has been unable to walk or talk and has experienced breathing difficulties with this conditions.

The county Down couple have four sons, Kane (10), Zack (9), Ollie (6) and Mark (1) who do not suffer from the illness.

Understandably these losses have been hard on Lacey's brothers who are very close to her.

The family are now fundraising to create a memory garden for their children, "we really want to make this last wish come true as this will be to remember all our beautiful children" reads the GoFundMe post.